So I have a Scat Pack with minor bolt ons. I recently ordered Rohana 20x9s for the front of my car and I'm having an issue on the rear size. If I get the 20x10, I can run a 305 555R but is this over kill on the Scat? Would it make more sense to order 2 more 20x9s and put a 275 555R on them? I feel like the bigger rear tires would just be over kill and slow the car down, if anything. Any input on this is greatly appreciated as I'm so torn on what to do.